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What is the flame spread characteristics of Spray Foam Insulation? And during the fire testing, was any dripping noticed?

April 26, 2017characteristics dripping flame foam insulation noticed spray spread Testing

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What is the flame spread characteristics of Spray Foam Insulation? And during the fire testing, was any dripping noticed?

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The flame spread classification of Spray Foam Insulation as tested in accordance with CAN/ULC S102 is less than 500 and in accordance with ASTM E-84 is a class 1 (21) at a thickness of 6″. The fire testing was conducted from the top of the Steinner tunnel without any product dripping during and after tests.